There’s actual evidence of sabotage tho, such as Hillary getting early access to debate questions, Shadow company (not even kidding they actually fucking named themselves that, look it up) being run by DNC members being in charge of tabulating voting in some states, and more.

They were even taken to court for it and admitted to some wrong doing, but nothing could be done since apparently the DNC is a private entity and no laws are broken. Legally they can screw over any candidate they want.